Air quality monitor



FIG. 1 is a perspective view of an air quality monitor showing my newdesign;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is another perspective view thereof.

The broken lines are shown for illustrative purposes only and form nopart of the claimed design.

CLAIM The ornamental design for an air quality monitor, as shown anddescribed.